JPS6170778U - - Google Patents
Info
- Publication number
- JPS6170778U JPS6170778U JP15521984U JP15521984U JPS6170778U JP S6170778 U JPS6170778 U JP S6170778U JP 15521984 U JP15521984 U JP 15521984U JP 15521984 U JP15521984 U JP 15521984U JP S6170778 U JPS6170778 U JP S6170778U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- capacitor
- comparison
- switch
- comparator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Testing Of Individual Semiconductor Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
- Tests Of Electronic Circuits (AREA)
Description
第１図はこの考案によるコンデンサ電圧比較回
路をＩＣ試験器の一部に適用した例を示すブロツ
ク図、第２図はその動作の説明に供するためのタ
イムチヤート、第３図は比較器１２の変形例を示
す図、第４図は従来のコンデンサ電圧比較回路を
示す図である。
１１：コンデンサ、１２：比較器、３８，３９
：スイツチ、４１：比較電圧よりも高い電圧を出
す電源、４２：比較電圧よりも抵い電圧を出す電
源、３６：スイツチ制御回路、１４：比較電圧源
。
Fig. 1 is a block diagram showing an example in which the capacitor voltage comparison circuit according to this invention is applied to a part of an IC tester, Fig. 2 is a time chart for explaining its operation, and Fig. 3 is a diagram of the comparator 12. FIG. 4, which is a diagram showing a modification, is a diagram showing a conventional capacitor voltage comparison circuit. 11: Capacitor, 12: Comparator, 38, 39
: switch, 41: power source that outputs a voltage higher than the comparison voltage, 42: power source that outputs a voltage higher than the comparison voltage, 36: switch control circuit, 14: comparison voltage source.
Claims (1)
圧と比較するコンデンサ電圧比較回路において、
上記コンデンサにそれぞれ第１及び第２スイツチ
を通じて接続され、上記比較電圧よりも高い電圧
を出力する第１電源及び上記比較電圧よりも低い
電圧を出力する第２電源と、上記比較器の出力と
リセツト信号とが供給され、上記コンデンサの電
圧が上記比較電圧よりも高いと上記第２スイツチ
をオンとし、上記コンデンサの電圧が上記比較電
圧よりも低いと上記第１スイツチをオンとするス
イツチ制御回路とを具備するコンデンサ電圧比較
回路。 In a capacitor voltage comparison circuit that compares the voltage charged in a capacitor with a reference voltage using a comparator,
A first power supply that outputs a voltage higher than the comparison voltage and a second power supply that outputs a voltage lower than the comparison voltage are connected to the capacitor through first and second switches, respectively, and are connected to the output of the comparator and reset. a switch control circuit which turns on the second switch when the voltage of the capacitor is higher than the comparison voltage and turns on the first switch when the voltage of the capacitor is lower than the comparison voltage; A capacitor voltage comparison circuit comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15521984U JPS6170778U (en) | 1984-10-15 | 1984-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15521984U JPS6170778U (en) | 1984-10-15 | 1984-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6170778U true JPS6170778U (en) | 1986-05-14 |
Family
ID=30713214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15521984U Pending JPS6170778U (en) | 1984-10-15 | 1984-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6170778U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55146051A (en) * | 1979-03-06 | 1980-11-14 | Nec Corp | Measuring method of current consumption of liquid crystal display circuit |
| JPS5682451A (en) * | 1979-12-08 | 1981-07-06 | Fujitsu Ltd | Voltage measuring circuit |
| JPS5860818A (en) * | 1981-10-06 | 1983-04-11 | Toshiba Corp | Offset correcting circuit of comparator |
-
1984
- 1984-10-15 JP JP15521984U patent/JPS6170778U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55146051A (en) * | 1979-03-06 | 1980-11-14 | Nec Corp | Measuring method of current consumption of liquid crystal display circuit |
| JPS5682451A (en) * | 1979-12-08 | 1981-07-06 | Fujitsu Ltd | Voltage measuring circuit |
| JPS5860818A (en) * | 1981-10-06 | 1983-04-11 | Toshiba Corp | Offset correcting circuit of comparator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6170778U (en) | ||
| JPH0186725U (en) | ||
| JPS60170070U (en) | Capacitor charging/discharging engine ignition system | |
| JPS6152439U (en) | ||
| JPH0298491U (en) | ||
| JPH02130124U (en) | ||
| JPH0214128U (en) | ||
| JPS6333000U (en) | ||
| JPS6199221U (en) | ||
| JPS63192884U (en) | ||
| JPS58122117U (en) | power control circuit | |
| JPS6338409U (en) | ||
| JPS629833U (en) | ||
| JPS6351536U (en) | ||
| JPS6034781U (en) | power supply circuit | |
| JPS61202134U (en) | ||
| JPH0283691U (en) | ||
| JPS6027512U (en) | amplifier power supply | |
| JPH01126673U (en) | ||
| JPH02131672U (en) | ||
| JPH0260888U (en) | ||
| JPH01113533U (en) | ||
| JPS62172240U (en) | ||
| JPH01123237U (en) | ||
| JPS63147032U (en) |